Home / 78,318.45-108,078.29-44,333.37

Finding the Fourth Proportional to 78,318.45, 108,078.29 and 44,333.37

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Solution

The fourth proportional to 78,318.45, 108,078.29 and 44,333.37 is: 61,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,318.45 : 108,078.29 = 44,333.37 : x
  2. Step 2: Convert to fraction form
    78,318.45/108,078.29 = 44,333.37/x
  3. Step 3: Cross multiply
    78,318.45x = 108,078.29 × 44,333.37
  4. Step 4: Simplify right side
    78,318.45x = 4,791,474,819.54
  5. Step 5: Solve for x
    x = 4,791,474,819.54/78,318.45
  6. Step 6: Final answer
    x = 61,179.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.